[TigersEye]

... although Fogel was found to have been carrying much more of the substance than Griner.

That's all the article says about the quantities. It's hard to compare raw pot with hash oil too. A gram of hash oil must be at least 50 times as potent as a gram of raw marijuana.

[jpp113]

Oil is generally 2-4 times as potent as flower

Flower is generally 18-32% THC
Oil is generally 50-89% THC

If Griner had a vape cartridge in its luggage, then it was most likely either a .5 gram or 1 gram